[mythtv-users] mythbackend segmentation fault

Henrik Gammelmark mythtv at geemark.com
Wed Jul 5 21:48:56 UTC 2006


Kevin Kuphal wrote:
> Henrik Gammelmark wrote:
> 
>>I have narrowed the mythbackend errors down to whenever I enable more 
>>than one tuner in mythtv-setup (no matter which one it seems), but I 
>>still can't find any pattern in the seamingly randomly chosen errors:
>>
>>*** glibc detected *** double free or corruption (out): 0x081316d8 ***
>>
>>*** glibc detected *** corrupted double-linked list: 0x08141cf8 ***
>>
>>Segmentation fault
>>
>>I have tried recompiling mythtv, ivtv, and the ivtv firmware, and even 
>>compiled the kernel also, just to be absolutely sure, it's the same 
>>compiler!
>>
>>I also tried reinstalling the libc6, which supposedly is the one making 
>>and/or reporting those nasty errors (?).
>>
>>I assume that glibc is merely reporting the errors, and not causing them?
>>
>>
>>Henrik Gammelmark wrote:
>>  
>>
>>>I tried removing the tuners from mythtv-setup, and the backend started 
>>>fine, and started checking the jobqueue periodically as it should, and I 
>>>was even able to perform a "mythfilldatabase".
>>>
>>>However, while running the mythfrontend, entering "watch tv", I got this 
>>>similar error on the frontend:
>>>
>>>
>>>2006-07-05 21:09:32.158 Connected to database 'mythconverg' at host: 
>>>localhost
>>>2006-07-05 21:09:32.257 Connecting to backend server: 127.0.0.1:6543 
>>>(try 1 of 5)
>>>2006-07-05 21:09:32.259 Connection timed out.
>>>                         You probably should modify the Master Server
>>>                         settings in the setup program and set the
>>>                         proper IP address.
>>>2006-07-05 21:09:35.445 TV: Attempting to change from None to None
>>>*** glibc detected *** double free or corruption (!prev): 0x08214ce8 ***
>>>
>>>
>>>
>>>Henrik Gammelmark wrote:
>>>
>>>    
>>>
>>>>I am installing MythTV for the first time, but I'm having problems with 
>>>>starting mythbackend. I have recompiled three times, without any luck.
>>>>I get either
>>>>"*** glibc detected *** double free or corruption (out): 0x08131000 ***"
>>>>or periodically "Segmentation fault" after which it crashes.
>>>>
>>>>I am able to record manually by "cat /dev/videoX > file.mpg" from all 
>>>>tuners, ivtv reports no errors in dmesg, and I am able to use 
>>>>mythtv-setup fine with tv-out, so I guess the cards and drivers should 
>>>>be fine.
>>>>
>>>>Installing MythTV 0.91 (stable release) on Debian testing with 1 x 
>>>>PVR-350 and 1 x PVR-500 with ivtv-drivers.
>>>>
>>>>I'm getting desperate here - what am I doing wrong?
>>>>Thank you very much in advance
>>>>
>>>>If you need more information or verbose output, let me know!
>>>>
>>>>      
> 
> You really should be using the 0.19-fixes branch to be sure you're not 
> encountering some long fixed bug
> 
> http://svn.mythtv.org
> 
> Kevin

I thought the one on the web was the latest stable, and the subversion 
version was the "unstable" one?

I will try the other one - thank you very much!


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